ADBMS6830MWCCSZ 16-Channel Multicell Battery Monitor with I2C SPI Interface and Multi-Chemistry Support

The ADBMS6830MWCCSZ is a multicell battery stack monitor capable of measuring up to 16 series-connected battery cells simultaneously using two individual analog-to-digital converters (ADCs). This advanced IC supports bus bar bypass and direct measurement of negative bus bar voltages.

Featuring a bidirectional isolated serial-port interface (isoSPI), the device enables high-speed, RF-immune communication over simple twisted pair cables. Multiple ADBMS6830 units can be daisy-chained to a battery management system (BMS) controller, allowing simultaneous monitoring of long, high-voltage battery strings with communication redundancy for cable break protection.

• Function: Battery Monitor
• Battery Chemistry: Multi-Chemistry
• Number of Cells: 16
• Interface: I2C, SPI
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP Exposed Pad
• Supplier Device Package: 80-LQFP-EP (12x12)

• Simultaneous and continuous measurement of 16 cell voltages
• Passive cell balancing with programmable pulse-width modulation control per channel
• Supports simultaneous cell balancing on adjacent channels
• Configurable digital low-pass filters per channel
• Bidirectional isoSPI interface with 2 Mbps isolated serial communications
• Uses a single twisted pair cable with low EMI susceptibility and emissions
• Bidirectional communication for broken wire protection
• Capacitor or transformer coupled
• Low-power cell monitoring mode
• Bus bar bypass and measurement support
• Up to 10 pins configurable as general-purpose analog input or digital I/O
• Temperature or other sensor inputs
• Configurable as an I2C or SPI controller
• Maximum lifetime TME: ±1.8 mV at 3.3 V per cell (−40°C to +125°C)
• Sleep-state supply current of 4 μA

• Electric and hybrid electric vehicles
• Backup battery systems
• Grid energy storage